Amanda Nunes KOs Cyborg in 51 seconds, Jones wins at UFC 232

INGLEWOOD, Calif. (AP) — Amanda Nunes pulled off one of the most surprising wins in mixed martial arts history when she left the world's most feared female fighter face-down on the canvas. Jon Jones merely did exactly what everyone expects him to do whenever he manages to get out of his own way.

Nunes knocked out Cris "Cyborg" Justino 51 seconds into the first round at UFC 232 on Saturday night, ending the featherweight champion's 13-year unbeaten run in spectacular fashion. Jones also reclaimed his light heavyweight title in his return from a 17-month cage absence. The two-time champ stopped Alexander Gustafsson with strikes on the ground in the third round.

Nunes (17-4), the UFC's bantamweight champion, made history after she fearlessly moved up 10 pounds to challenge Justino (20-2), widely considered the most accomplished female fighter in MMA. The undersized underdog dominated her fellow Brazilian from the start, buckling Justino's knees and knocking her down twice before landing the overhand right that ended it.

"Nothing was going to stop me from what I wanted to do tonight," Nunes said. "When she connected with a couple of punches, I just said, 'I'm going to walk right through her.'" Nunes is the third fighter in UFC history to hold two title belts simultaneously, joining Conor McGregor and Daniel Cormier.

"I knew this was happening, I told you all!" Nunes said. "I'm the new 'champ-champ.' I said that before, and now I'm just achieving this dream." Just six days after the UFC moved the entire 232 card from Las Vegas to the famous Forum south of downtown Los Angeles, Jones (23-1, 1 no-contest) closed the show with a methodical dismantling of Gustafsson (18-5). The bout was a rematch of Jones' toughest fight, a thrilling decision in 2013 over Gustafsson.

But in Jones' first bout since completing his second drug-related suspension, the star picked apart Gustafsson with kicks in the first two rounds. He got a takedown in the third and finished the fight with several brutal shots to Gustafsson's head on the ground.

"It was always about being the champion again," Jones said. It was never about the opponent, nothing personal. I'm just happy with my belt, and for now I want to go back to the gym and improve my game."

The UFC made the extraordinary decision to move its show 280 miles to California during a holiday week just to keep Jones on the card. The former champion recently tested positive for low levels of a banned steroid, but California regulatory officials didn't consider the result serious enough to keep the long-troubled star out of the octagon, while Nevada's commission did.

The 31-year-old Jones had fought only twice in the previous 47 months, losing an enormous chunk of his fighting prime due to his misbehavior. He held the UFC's 205-pound title twice before, but had it stripped both times.

Jones returned from his first doping suspension with a stoppage of Cormier in July 2017 to reclaim his light heavyweight title, but lost the belt again after testing positive for steroids. A capacity crowd of 15,862 in Southern California watched another groundbreaking achievement by Nunes, the ferocious brawler who calls herself "The Lioness." Nunes also knocked out Ronda Rousey in less than a minute two years ago, and she has victories over bantamweight champion Miesha Tate and future 125-pound champion Valentina Shevchenko.

Nunes' punching power is often too much for her male sparring partners, and she carved up Justino with astonishing ease despite a size disadvantage. Justino had won 20 consecutive fights since her MMA debut in 2005, and she had dominated since the inception of the UFC's 145-pound division, which was created largely as a showcase for Cyborg's talent.

"I know I hit hard, but sometimes you never know," Nunes said. "When I hit her, I could see she got rung a little bit. I'm thinking, 'I'm going to be fast, I'm going to move my head, and I know I'm going to get a knockout.'"

Earlier, Australian featherweight prospect Alexander Volkanovski (19-1) won his 16th straight bout in the PPV opener, stopping veteran Chad Mendes with right hands in the second round of a back-and-forth bout. Michael Chiesa also won his welterweight debut with a second-round submission of former champ Carlos Condit, who lost his fifth straight fight.

Former UFC lightweight champion BJ Penn tapped out for the first time in his MMA career, losing to Brazilian jiu-jitsu whiz Ryan Hall on a heel hook in the first round. Penn (16-13-2), an MMA pioneer who turned 40 this month, is 0-6-1 in his last seven fights since 2010.

Despite the late move to LA, the UFC sold out the Forum after just six days of ticket sales. The crowd included Justino friend Halle Berry, Dolph Lundgren, David Spade, NL MVP Christian Yelich of the Milwaukee Brewers, Travis Barker, Mick Foley and Amber Valletta.

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